bcm63xx_ep0_setup_callback(9)

bestie, welcome to the bcm63xx_ep0_setup_callback(9) page from the Kernel API Manual ✨ this one is short and iconic: it’s all about dropping the spinlock so the ->setup callback can get invoked. lowkey important, no cap 💅

🌸 NAME 🌸

bcm63xx_ep0_setup_callback — Drop spinlock to invoke ->setup callback. that’s it, that’s the function 🫶

✨ SYNOPSIS ✨

okay so the signature is giving exactly this, bestie:

int bcm63xx_ep0_setup_callback (struct bcm63xx_udc *udc , struct
       usb_ctrlrequest *ctrl );

🎀 ARGUMENTS 🎀

these are the two little parameters having a main character moment:

• udc — Reference to the device controller. 💖
• ctrl — 8-byte SETUP request. 📨

🦋 SEE ALSO 🦋

the whole extended friend group lives in the Kernel file ./drivers/usb/gadget/udc/bcm63xx_udc.c — plus all these icons, fr fr:

• struct iudma_ch_cfg(9), struct iudma_ch(9), struct bcm63xx_ep(9), struct bcm63xx_req(9), struct bcm63xx_udc(9)
• bcm63xx_ep_dma_select(9), bcm63xx_set_stall(9), bcm63xx_fifo_setup(9), bcm63xx_fifo_reset_ep(9), bcm63xx_fifo_reset(9), bcm63xx_ep_init(9), bcm63xx_ep_setup(9)
• iudma_write(9), iudma_read(9), iudma_reset_channel(9), iudma_init_channel(9), iudma_init(9), iudma_uninit(9)
• bcm63xx_set_ctrl_irqs(9), bcm63xx_select_phy_mode(9), bcm63xx_select_pullup(9), bcm63xx_uninit_udc_hw(9), bcm63xx_init_udc_hw(9), bcm63xx_ep_enable(9), bcm63xx_ep_disable(9)
• bcm63xx_udc_alloc_request(9), bcm63xx_udc_free_request(9), bcm63xx_udc_queue(9), bcm63xx_udc_dequeue(9), bcm63xx_udc_set_halt(9), bcm63xx_udc_set_wedge(9)
• bcm63xx_ep0_spoof_set_cfg(9), bcm63xx_ep0_spoof_set_iface(9), bcm63xx_ep0_map_write(9), bcm63xx_ep0_complete(9), bcm63xx_ep0_nuke_reply(9), bcm63xx_ep0_read_complete(9), bcm63xx_ep0_internal_request(9)
• bcm63xx_ep0_do_setup(9), bcm63xx_ep0_do_idle(9), bcm63xx_ep0_one_round(9), bcm63xx_ep0_process(9), bcm63xx_udc_get_frame(9), bcm63xx_udc_pullup(9), bcm63xx_udc_start(9), bcm63xx_udc_stop(9)
• bcm63xx_update_cfg_iface(9), bcm63xx_update_link_speed(9), bcm63xx_update_wedge(9), bcm63xx_udc_ctrl_isr(9), bcm63xx_udc_data_isr(9), bcm63xx_udc_init_debugfs(9), bcm63xx_udc_cleanup_debugfs(9), bcm63xx_udc_probe(9), bcm63xx_udc_remove(9)

mwah 💋 this page comes from ./drivers/usb/gadget/udc, dated October 2026, and it’s the bcm63xx_ep0_setup_callback(9) Kernel API Manual. byeee 🫶🌈